You sound like someone who knows the answer just doesn't want to??
It does sound like diabetes, but that is easy to manage if you decide to but only if you decide to.
Lose some weight, start eating the right foods & healthy ones, exercise, do some relaxing stuff, yoga, swimming, whatever works for you.
Also look into alternative/natural therapies it is entirely possible that you might find something there to help you manage your cholesterol & diabetes much more easily, maybe even reduce or heal you. Worth some research.
I'd start at life extension foundation (or is it organization??).
Good luck